Manufacturers and suppliers of Accoustic Enclosure and Sound Proofing
 No Noise Pollution
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(+91) 981 000 2479
Mail Us
info@ddstha.in
W - 54, D and E, 1st Floor
Sector - 11 Noida - 201301 UP India
Noise Standards
SOUND LEVEL dB(A) TIME PERMITTED SOUND LEVEL dB(A) TIME PERMITTED
  HOURS MINUTES   HOURS MINUTES
85 16 00 101 01 44
86 13 56 102 01 31
87 12 08 103 01 19
88 10 34 104 01 09
89 09 11 105 01 00
90 08 00 106 00 52
91 06 58 107 00 46
92 06 04 108 00 40
93 05 17 109 00 34
94 04 36 110 00 30
95 04 00 111 00 26
96 03 29 112 00 23
97 03 02 113 00 20
98 02 50 114 00 17
99 02 15 115 00 16
100 02 00    
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W - 54, D and E, 1st Floor Sector - 11 Noida - 201301 UP
Phone Number +91-9810002479 ,+91-120-4262127
Email Address info@ddstha.in
Website www.ddstha.in
© DDSTHA Mechanicals Private Limited. All Rights Reserved 2021